161970080

素因数分解:

$2^5\times 5^1\times {\mathrm{199}}^1\times {\mathrm{5087}}^1$

素因数の和:5301

約数の個数: 48

約数和(自身を含む): 384652800

約数和(自身を除く): 222682720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 199, 398, 796, 995, 1592, 1990, 3184, 3980, 5087, 6368, 7960, 10174, 15920, 20348, 25435, 31840, 40696, 50870, 81392, 101740, 162784, 203480, 406960, 813920, 1012313, 2024626, 4049252, 5061565, 8098504, 10123130, 16197008, 20246260, 32394016, 40492520, 80985040, 161970080]

約数ペア:

[(1, 161970080), (2, 80985040), (4, 40492520), (5, 32394016), (8, 20246260), (10, 16197008), (16, 10123130), (20, 8098504), (32, 5061565), (40, 4049252), (80, 2024626), (160, 1012313), (199, 813920), (398, 406960), (796, 203480), (995, 162784), (1592, 101740), (1990, 81392), (3184, 50870), (3980, 40696), (5087, 31840), (6368, 25435), (7960, 20348), (10174, 15920)]